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(共21张PPT)
选择性必修一 Unit 5
My lifelong pursuit is to keep all the people away from hunger.
—Yuan Longping
我毕生的追求是让所有人远离饥饿。
——袁隆平
Get to know an agricultural scientist
1 Who is the man in the photo What crop is he holding in his hands
2 What do you know about the man What else do you want to know about him
Paragraph 1
Paragraph 2
Paragraph 3
Paragraph 4
Paragraph 5
Paragraph 6
A Yuan conducted research and developed hybrid rice.
B Yuan worked hard to fulfil his dreams.
C Yuan considered himself a farmer.
D Yuan decided to study agriculture.
E Yuan’s innovation has helped to feed more people.
F Yuan cared little for fame or wealth.
P. 50
The photo is of Yuan Longping, holding sheaves(扎；捆) of his hybrid rice.
I know that he is often called the "father of hybrid rice", and his work has sparked a
farming revolution in China. I guess I want to know what he thinks about the future of
China’s agriculture.
P. 50
When talking about the persons who contribute the most to this great change,who will come to your mind first
PIONEER FOR AII PEOPLE
Yuan Longping,known as the "father of hybrid rice",was one of China's most famous scientists.Yet,he considered himself a farmer because he continually worked the land in his research.Indeed,his sim butstrong body was just like that of millionsof Chinese farmers, to whom he had devoted his life.
Yuan Longping was born in 1930 in Beijing.His parents wanted him to pursue a career in science or medicine. However,what concerned him most was that farmers often had poor harvests and sometimes even had a serioos tage of food to eat.To tackle this crisis, he chose to study agriculture anoreosiedLaneducation at Southwest Agricultural College inChongqing.
After graduating in 1953,he worked as aresearcher.Yuan Longping realised that larger fields were not the solution. Instead,farmers needed to boost yields in the fields they had.How this couldbe done was a challenging question at the time.Yuanwas convinced that the answer could be found in the creation of hybrid rice.A hybrid is a cross between two or more varieties of a species.One
characteristic of hybrids is that they usually attain a higher yield than conventional crops. However,whether it was possible to develop a hybrid of self-pollinating plants such as rice was a matter of great debate.The common assumption then was that it could not be done.Through intense effort,Yuan overcame enormous technical difficulties to develop the first hybrid rice that could be used for farming in 1974.This hybrid enabled farmers to expand their output greatly.
Today,it is estimated that about 60 percent of domestic rice consumption in China is
a person who is the first to study and develop a
particular area of
knowledge,culture,etc.
What is he holding
Yuan is the man who is
Look at the title and the
and predict the content.
Read for prediction.
to
hybrid rice
the first
develop_
of the article
picture
1.What may be the writing style of the article
A.A story
B. Travel journal
米 Biography An introduction to a person
2.Howdoes the author developthis article
米 Time B.Space C.logic
3.Where can you find sucha piece of writing
A. A letter. B.A story book.
米\A magazine. D.A science report.
Scan the first sentence of each paragraph and think about the following questions.
Read for prediction.
My lifelong pursuit is to
keep all the people
away from hunger.
-- Yuan Longping
WORKING THE LAND
Get to know
an agricultural scientist
1.What crop is Yuan Longping holding in his hands
He is holding sheaves of his hybrid rice.
Activity 2: Answer the questions.
2. What do you know about Yuan Longping What else do you want to know about him
I know that he is often called the “father of hybrid rice”，and his work has sparked a farming revolution in China. I guess I want to know what he thinks about the future of China’s agriculture.
Get to know
an agricultural scientist
Language study
P. 50
造福全人类的先驱
that pron. (指代上文已经提及的)事、物
e. g. (2020新高考I卷 C) In the mid-1990s, Tom Bissell taught English as a volunteer in Uzbekistan. He left after seven months, physically broken and having lost his mind. A few years later, still attracted to the country, he returned to Uzbekistan to write an article about the disappearance of the Aral Sea.
His visit, however, ended up involving a lot more than that. Hence this book, Chasing the Sea: Lost Among the Ghosts of Empire in Central Asia, which talks about a road trip from Tashkent to Karakalpakstan, where millions of lives have been destroyed by the slow drying up of the sea.
9. What does the underlined word “that” in paragraph 2 refer to
A. Developing a serious mental disease. B. Taking a guided tour in Central Asia.
C. Working as a volunteer in Uzbekistan. D. Writing an article about the Aral Sea.
__
that pron. (指代上文已经提及的)事、物
e. g. (2020浙江卷 B) The traffic signals along Factoria Boulevard in Bellevue, Washington, generally don't flash the same length of green twice in a row, especially at rush hour. At 9:30 am, the full red / yellow / green signal cycle might be 140 seconds. By 9:33 am, a burst of additional traffic might push it to 145 seconds. Less traffic at 9:37 am could push it down to 135. Just like the traffic itself, the timing of the signals changes. That is by design. ...
25. What does the underlined word "that" in paragraph 2 refer to
A. Increased length of green lights. B. Shortened traffic signal cycle.
C. Flexible timing of traffic signals. D. Smooth traffic flow on the road.
that pron. (指代与上文提及的事物同类但非同一物)
e. g. Nine in ten parents said there were significant differences in their approach to educating
their children compared with that of their parents. (09江苏卷)
百分之九十的家长说他们教育孩子的方法与他们自己父母教育他们的方法有很大差异。
The traffic on the main streets has a longer green signal than that on the small ones.
主干道上通行的绿信号灯比小的街道上的绿灯信号更长。 (2013四川)
P. 50
造福全人类的先驱
devote one’s life to 献身于、致力于(devote 表示把“时间、精力”等用于某事或帮助人)
e. g. Lin Qiaozhi devoted her life to the care of mothers and babies.
He has devoted all his life to his teaching career.
As a volunteer, he has devoted most of his time and energy to helping others.
_____
Yuan Longping was born in 1930 in Beijing.His parents wanted him to pursue a career in science or medicine. However,what concerned him most was that farmers often had poor harvests and sometimes even had a serious shortageof food to eat.To fackle this crisis, he chose to study agriculture and received an education at Southwest Agricultural College in Chongqing.
To tackle the crisis that farmers often had poor harvest and
sometimes even had a serious shortage of food to eat.
2.Why did Yuan decide to study agriculture
Read for detailed information.
Para.2
Para.3
One characteristic of hybrids is that they usually attain a higher
possible to develop a hybrid of self-pollinating plants such as rice was a matter of great debate,The common assumption then was that it could not be done.Through intense effort,Yuan overcame enormous technical difficulties to develop the first hybrid rice that could be used for farming in 1974.This hybrid enabled farmers to expand their output greatly.
They usually attain a higher yield than conventional crops.
yield than conventional crops.However,whether it was
3.What is the main advantage of hybrid crops
Read for detailed information.
Today,it is estimated that about 60 percent of domestic rice consumption in China is comprised of crops generated from Yuan's hybridstrains,and his strains have allowed China's farmers to produce around 200 milion tons of rice per year. Yuan's innovation has helped feed not just China,but many other countries that depend on rice as well,such as India and Vietnam. Because of his invaluable contributions,Yuan Longping received numeroUs awards both in China and abroad.
Yuan's innovation has helped feed not just China,but many other countries that depend on rice as well,such as India and
Vietnam.
How has Yuan's work helped China and other countries
Read for detailed information.
Para.4
1. Why does Yuan Longping consider himself a farmer
Activity 4: Read the text and answer the questions.
Para. 1. Yuan considers himself a farmer.
Because he continually works the land in his research.
[Para. 1, line 2] … Yet, he considers himself a farmer because he continually works the land in his research. …
A PIONEER FOR ALL PEOPLE
2. Why did Yuan decide to study agriculture
Activity 4: Read the text and answer the questions.
Para. 2. Yuan decided to study agriculture.
He was concerned that farmers had poor harvests and sometimes even had a shortage of food to eat.
[Para. 2, lines 3-6] … what concerned him most was… To tackle this crisis, he chose to …
A PIONEER FOR ALL PEOPLE
3. What is the main advantage of hybrid crops
Activity 4: Read the text and answer the questions.
Para. 3. Yuan conducted research and developed hybrid rice.
One characteristic of hybrids is that they usually attain a higher yield than conventional crops.
[Para. 3, lines 7-8] … One characteristic of hybrids is that they usually attain a higher yield than conventional crops.
A PIONEER FOR ALL PEOPLE
P. 50
造福全人类的先驱
boost vt. 改进、增加(boost yields增产) ；促进、增强 yield C 产量；收益
e. g. We have to boost sales in order to boost profits.
You’ll boost your confidence if you boost your performance.
In order to boost yields, we have to boost the farming methods.
___
要增加利润，我们就得增加销售。
改进你的表现，你就能增强你的信心。
要增加产量，我们的改进耕种方法。
P. 50
造福全人类的先驱
be convinced that … / be convinced of sth. 确信、坚信
e. g. I am convinced that we are doing the right thing.
I’m convinced that he is innocent.
__________
我确信我们做的事事正确的。
我坚信他是清白无辜的。
I’m convinced of his innocence.
P. 50-51
cross C 十字、叉；十字架；混合物；杂种；杂交品种 v. 横穿；(使)交叉；使杂交
e. g. A mule(骡子) is a cross between a horse and a donkey. (杂交品种)
The flower is produced by crossing several different varieties. (不同品那种杂交的)
___

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